diff --git a/src/main/java/net/minecraftforge/client/ForgeHooksClient.java b/src/main/java/net/minecraftforge/client/ForgeHooksClient.java
index ef85126cda..6e72c06c19 100644
--- a/src/main/java/net/minecraftforge/client/ForgeHooksClient.java
+++ b/src/main/java/net/minecraftforge/client/ForgeHooksClient.java
@@ -575,24 +575,38 @@ public class ForgeHooksClient
      */
     public static void fillNormal(int[] faceData, EnumFacing facing)
     {
-        Vector3f v1 = new Vector3f(faceData[3 * 7 + 0], faceData[3 * 7 + 1], faceData[3 * 7 + 2]);
-        Vector3f t = new Vector3f(faceData[1 * 7 + 0], faceData[1 * 7 + 1], faceData[1 * 7 + 2]);
-        Vector3f v2 = new Vector3f(faceData[2 * 7 + 0], faceData[2 * 7 + 1], faceData[2 * 7 + 2]);
+        Vector3f v1 = getVertexPos(faceData, 3);
+        Vector3f t  = getVertexPos(faceData, 1);
+        Vector3f v2 = getVertexPos(faceData, 2);
         v1.sub(t);
-        t.set(faceData[0 * 7 + 0], faceData[0 * 7 + 1], faceData[0 * 7 + 2]);
+        t.set(getVertexPos(faceData, 0));
         v2.sub(t);
         v1.cross(v2, v1);
         v1.normalize();
 
-        int x = ((byte)(v1.x * 127)) & 0xFF;
-        int y = ((byte)(v1.y * 127)) & 0xFF;
-        int z = ((byte)(v1.z * 127)) & 0xFF;
+        int x = ((byte) Math.round(v1.x * 127)) & 0xFF;
+        int y = ((byte) Math.round(v1.y * 127)) & 0xFF;
+        int z = ((byte) Math.round(v1.z * 127)) & 0xFF;
+
+        int normal = x | (y << 0x08) | (z << 0x10);
+
         for(int i = 0; i < 4; i++)
         {
-            faceData[i * 7 + 6] = x | (y << 0x08) | (z << 0x10);
+            faceData[i * 7 + 6] = normal;
         }
     }
 
+    private static Vector3f getVertexPos(int[] data, int vertex)
+    {
+        int idx = vertex * 7;
+
+        float x = Float.intBitsToFloat(data[idx]);
+        float y = Float.intBitsToFloat(data[idx + 1]);
+        float z = Float.intBitsToFloat(data[idx + 2]);
+
+        return new Vector3f(x, y, z);
+    }
+
     @SuppressWarnings("deprecation")
     public static Optional<TRSRTransformation> applyTransform(net.minecraft.client.renderer.block.model.ItemTransformVec3f transform, Optional<? extends IModelPart> part)
     {